Move shadow code to views\corewm

ash/wm/shadow_types.cc

Index: ash/wm/shadow_types.cc
===================================================================
--- ash/wm/shadow_types.cc	(revision 167688)
+++ ash/wm/shadow_types.cc	(working copy)
@@ -1,22 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "ash/wm/shadow_types.h"
-
-#include "ash/wm/window_properties.h"
-#include "ui/aura/window.h"
-
-namespace ash {
-namespace internal {
-
-void SetShadowType(aura::Window* window, ShadowType shadow_type) {
-  window->SetProperty(kShadowTypeKey, shadow_type);
-}
-
-ShadowType GetShadowType(aura::Window* window) {
-  return window->GetProperty(kShadowTypeKey);
-}
-
-}  // namespace internal
-}  // namespace ash